New multidisciplinary research tops chemists' meeting Aug. 22-26
... Healthier Than Conventional Food?" chemists will put the organic food trend under a microscope. Organic food producers claim their products are healthier than conventional foods, but are consumers buying a misconception? Discussions will address many issues related to organic food, including whether it...Espionage may have driven the evolution of bee language according to UCSD-led study in Brazil
...eder of either the aggressor or victim species and put out dummy feeders at a new location with paper marked by bees of their own species, paper marked by the other species, or unmarked paper. Bees of both species were able to distinguish their kin's odor marks from the marks of the other species. ...Stanford researchers go from heaven to Earth in 'lifeguard' test
... climbs. The most dramatic test so far put the equipment through an environment as close to extraterrestrial as possible. On that trip, the expedition members wore LifeGuard on a journey to the top of Licancabur volcano, on the border of Bolivia and Chile. It's an environment that combines lo...UCLA researchers recreate patterns formed by mammalian cells
In early development, how do cells know to put the right spacing between ribs, fingers and toes? How do they communicate with each other to form symmetrical and repeated patterns such as zebra stripes or leopard spots? For the first time, UCLA researchers have recreated the ability of mammalian ...Trapping carbon in soil key for protecting global food security, dealing with climate change
...nd if the practices Lal outlines in his report are put to widespread use, the world's soils could reach their carbon-carrying limits in about 50 years. That will hopefully buy researchers enough time to find alternatives to fossil fuels, which should reduce the amount of carbon released into the atmosphe...Hidden cost of Colorado River diversions is $2.4 billion annually
... "It's a crass, philistine thing to do, but we can put a dollar value on the impact. After all, our common currency is currency." Flessa suggests that an environmental impact, or mitigation fee, should be included in the price of water. The money from mitigation fees could be used for ecosystem restorati...Canine word-learning research published in Science
...stand entire phrases, such as requests for Rico to put toys in boxes, or to bring them to certain people. Fischer noted that people should not take this study as a reason to go out and get a Border collie as a novelty. "Border collies are working dogs," Fischer said. "If they were humans, we'd call them ...Need sex? It's probably something about stress
... To simulate such late-summer conditions, Nedelcu put culture plates full of Volvox into water baths for two hours. At several points in time, she added a dye that fluoresces when exposed to oxidants. She then measured the fluorescence, which corresponded to the amount of oxidants the Volvox produced. ...Parting genomes: UA biologists discover seeds of speciation
...events, Reed says, biologists haven't been able to put their finger on just what initiates the reproductive isolation. Several researchers have identified mutant forms of certain genes associated with the inability of fruitflies to hybridize with closely related species, but in all cases those genes were...Researchers develop blood test that can detect genetic changes in progressive breast cancer
...et, and the oncologist has to know which bullet to put in his gun," said Dr. Jonathan Uhr, professor of microbiology and internal medicine in the Cancer Immunobiology Center at UT Southwestern and senior author of the study. "Obtaining repeated blood samples is a safe and routine procedure, and this test...Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say
... ''This is really the first time we've tried to put together a picture of how the early atmosphere, early climate and early continental evolution went hand in hand,'' said Donald R. Lowe, a professor of geological and environmental science who wrote the paper with Michael M. Tice, a graduate student i...Junk DNA yields new kind of gene
...kled the question, How is it regulating SER3? They put the question on the table during a lab retreat atop a downtown skyscraper. "Everybody talks, and they are not allowed to show any data," said Winston. Out of that intellectual free-for-all, three models emerged. The first held that RNA transcripts pr...Drug that cuts off tumor's blood supply extends lives of colorectal cancer patients
...ter researcher and senior author of the study. "To put this study in the right perspective, up until the year 2000, median survival in patients with advanced colorectal cancer was about 12 months," said Kabbinavar, an associate professor of hematology/oncology who has been working with Avastin for the la...Researchers establish first molecular link between eating and aging
... austere diet just isn't feasible. "It's easy to put rodents on a spartan diet. With people it's not so easy; they don't want to diet," said Guarente. In fact, the side effects in a human being whose diet was cut by about 50 percent--down to 1,000 to 1,200 calories a day, the reduction necessary to ge...Temple virologist receives NIH grant to continue investigation of HIV dementia complex
...reservoir for productive HIV infection. "When you put an HIV patient on drugs or drug therapy, the virus goes way down to often undetectable levels," notes Rappaport. "But when you take them off the drugs, the infection comes back. It may very well be these macrophages where the infected cells are hid...Pharmacogenomics could replace 'trial-and-error' with science from the human genome
...g drug therapy. Finally, legal protections must be put in place to preclude the misuse of genetic information from patients. The science and technology of pharmacogenomics, which bases the choice of medications and their dosages on the patient's specific genetic makeup, is the basis of "individualized m......emain active. The new field of epigenetic therapy, put forth by the USC researchers in their Nature review paper, aims to switch these genes back on. In their article, Peter Jones, Ph.D., director of USC/Norris and Distinguished Professor of Biochemistry and Molecular Biology and Urology at the Keck Scho...Mutant biological machine makes proteins but can't let go
... that ribosomes with these key spots changed could put proteins together as well as normal ribosomes, but let go of the finished product much more slowly. "Most scientists have said that these four nucleotides must be critical for synthesis of the growing protein because of their location, and we fully e...Molecular image of genotoxin reveals how bacteria damage human DNA
...the journal Nature, shows exactly how the toxin is put together at the molecular level and damages human DNA. The structure also could help scientists to design new drugs to fight the wide variety of bacteria that use this toxin. The toxin, called cytolethal distending toxin, or CDT, is used by bacteria ......up35 from forming amyloid fibers in that cell. But put that cell in a different environment and the result may be a more moderate level of Hsp104 that would, in turn, create amyloid fibers in Sup35, changing how that protein functions and ultimately altering the cell's biology. And because these changes ...